Set the error handler that is invoked if any filter or endpoint generates an error

Set the error handler that is invoked if any filter or endpoint generates an error

Usage

pr_set_error(pr, fun)

Arguments

pr

A Plumber API. Note: The supplied Plumber API object will also be updated in place as well as returned by the function.

fun

An error handler function. This should accept req, res, and the error value

Value

The Plumber router with a modified error handler

Examples

if (FALSE) {
handler_error <- function(req, res, err){
  res$status <- 500
  list(error = "Custom Error Message")
}

pr() %>%
  pr_get("/error", function() log("a")) %>%
  pr_set_error(handler_error) %>%
  pr_run()
}